/Engine/Plugins/Experimental/StructUtils/Source/StructUtils/Public/PropertyBag.h
Returns helper class to modify and access a nested array (mutable version). Note: Note: The array reference is not valid after the layout of the referenced property bag has changed!
helper class to modify and access arrays
[TValueOrError](API\Runtime\Core\Math\TValueOrError)< [FPropertyBagArrayRef](API\Plugins\StructUtils\FPropertyBagArrayRef), [EPropertyBagResult](API\Plugins\StructUtils\EPropertyBagResult) > GetMutableNestedArrayRef ( const int32 Index ) const